Traditional car radios has brought many challenges for automotive design. Complex sound systems need to support a variety of tuner, controlled heat dissipation, and receive signals from multi-channel cables from the antenna. In addition, the received analog signal picks up a large number of noise during transmission from the antenna to the vehicle audio system. In addition, baseband processing requires a dedicated hardware, and the separation design can support broadcast standards in different regions of the world.
Maxim's latest remote tuner scheme, RF to bit stream tuner can be mounted close to the quiet environment close to the antenna, thereby minimizing noise. Transfer the tuner's digital output serial translation to a low-cost coaxial cable transfer with Maxim serializer / SERDES (SERDES) to a low-cost coaxial cable transmission, and can pass through the same cable to remote tuner Power supply. Not only is the performance of the radio signal, but also reduces the weight of the vehicle, thereby achieving a farther battery life. Since the vehicle audio system supports the tuner of different regional standards, there is a large space, and the system complexity and heat consumption are reduced. For example, for a 4-channel radio system, the power consumption of the entire sound system can be reduced by 4W. Further, the MAX 2175 causes the baseband processing to be implemented by software such as Rissisa's R-Car H3 SOC. This software radio (SDR) scheme does not require dedicated baseband processors to improve design flexibility. Now, simply change the software to support the Global Broadcasting Standards via MAX2175.
Main advantage
· Design flexibility and scalability: designers can optimize a single remote tuner platform, manage the number of channels of the remote tuner to support different applications, no need to redesign the vehicle audio system; simple change software to support global broadcast standards.
· Simplify design, save space: use the subsequator to connect SOC replace multi-tunator scheme, reduce system complexity, save space, and reduce sound system fever. Provide 48 pins 7mm x 7mm TQFN package (temperature range: -40 ° C + 85 ° C)
· Improve the radio signal performance: The tuner is more close to the antenna; the digital signal is transmitted in place of analog signal, and the signal is clearer.
· Improve automobile life: reduce cable weight by reducing the number of cables.
The Maxim Remote Tuner Program contains the following Maxim products:
· MAX2175 simulation / digital mixing circuit radio receiver, integrated RF to bits front end
· MAX96708 14-bit GMSL subsequator
· MAX96711 14-bit GMSL serializer
· MAX15027 1A, low pressure difference linear regulator
· MAX20002 36V, 2A, synchronous buck converter
Evaluation
· "By reducing cable, we offer space for OEM, design and simple design, and achieve performance improvement." Maxim Integrated Automobile Business Department William Chu said, "Maxim is currently unique to provide RF, serdes And power companies. "
"" Fraunhofer IIS has designed a complete core development kit (CDK) ", and the person in charge of the Fraunhofer IIS Information Entertainment Business Group," Working with Maxim, we developed A complete set of software radio solutions provide clearer broadcast signals for automotive applications. "
· "Software radio is the future development trend of automotive electronics, and it has come to us." Luca de Ambroggi, chief analyst of IHS Markit, said, "I see the electronic system in the car is becoming like a powerful Practical PC. Like the PC, if you want to add new features, just download and install the appropriate software programs, without changing hardware.
Supply and price
· Provide evaluation board: max2175r1evkit #; max2175j1evkit #
· Based on the application, MAX2175 and evaluation board offer (can be purchased through Maximstorefront online mall)
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